Inspiron 546s wont turn on

Having a problem with an Inspiron 546s that's only a few months old. For some reason it wont power on, I"ve tried unplugging everything connected to it, and when I connect the power cord to it an orange light is visible inside and the green light on the back is on, at least until I hit the power button, I hear a noise and the green light on the back goes out and nothing else happens. I've tried using a different power cords and different power outlets but still cant get it to turn on.

Re: Inspiron 546s wont turn on

The power button is off, the most I can get the comp to do is I hit the power button, the 2 fans inside come on for a split second and then its like all power is cut off. Only light that pretty well stays on is an amber light inside on the motherboard. Even the green power light on the back goes out.

And nope, no changes have been made that I know of. Its my moms computer and she just uses it to check her email/facebook, stuff like that.